Gas Burner

Abstract

A gas burner comprising a burner pot ( 2 ) supporting a burner body ( 6 ) comprising a series of peripherally distributed flame orifices ( 8 ), a gas injector ( 13 ) and a gas supply tube ( 11 ) provided with a collar ( 12 ), which are joined to the burner pot; the burner pot is provided with a bottom ( 9 ) which has a smooth walled central orifice ( 10 ); the extremity ( 17 ) of the supply tube is fitted, without any significant amount of clearance via the underneath part of the bottom ( 9 ) of the burner pot, inside the orifice ( 10 ) with the collar ( 12 ), resting against the lower surface of the bottom ( 9 ); the injector ( 13 ) is screwed, from above the bottom ( 9 ), into the extremity of the supply tube ( 11 ); and the injector ( 13 ) is configured in such a way as to push back the wall of the extremity of the supply tube ( 11 ) into a tight resting position against the wall of the orifice ( 10 ).

1 . A gas burner comprising a burner pot supporting a burner body having at least one set of peripherally distributed flame orifices, a gas injector and a gas supply tube, furnished with a collar, being connected to said burner pot,
 wherein the following features are combined:
 the burner pot has a bottom furnished with a smooth-walled central orifice, 
 the end of the supply tube is sleeve-fitted with no notable clearance, from underneath the bottom of the burner pot, into the orifice with the collar pressing against the bottom face of the bottom of the burner pot, 
 the injector is screwed, from the top of the bottom of the burner pot, into the end of the supply tube, and 
 the injector is arranged to push away the end wall of the supply tube pressing in a sealed manner against the wall of the orifice. 
   
     
     
         2 . The gas burner as claimed in  claim 1 , wherein said collar is integral with the supply tube and formed by a folding of the wall of said tube. 
     
     
         3 . The gas burner as claimed in  claim 1 , wherein said injector is externally frustoconical at least in part. 
     
     
         4 . The gas burner as claimed in  claim 3 , wherein the frustoconical portion of the injector is situated above its threaded portion. 
     
     
         5 . The gas burner as claimed in  claim 1 , wherein a terminal portion of the end of the supply tube that extends beyond the collar has a length substantially equal to the thickness of the bottom of the burner pot. 
     
     
         6 . The gas burner as claimed in  claim 1 , wherein said supply tube is bent beneath the collar. 
     
     
         7 . The gas burner as claimed in  claim 6 , wherein said supply tube is bent substantially at 90°. 
     
     
         8 . The gas burner as claimed in  claim 1 , wherein the end of the supply tube is tapped internally while the injector is furnished with a standard thread. 
     
     
         9 . The gas burner as claimed in  claim 1 , wherein the inner face of the wall of the end of the supply tube is smooth while the injector is furnished with a self-tapping thread.